Got it fixed last night, thanks. After doing all those files the Norton website told me to run, I found out that they don't work on Norton SystemWorks 2003 Professional, which I neglected to tell you. There was a link, however that showed you how to remove Norton SystemWorks 2003. Out of that, there was only one key in the registry that I did not delete and one folder in the computer that I did not delete. Those two things apparently were all it took for it not to cooperate. The Windows Security Center still showed Norton was installed and up-to-date, but I decided I'd install Avast anyway and see what I got. I restarted the computer with no messages about an incompatible AV. Restarted the computer again to make sure - still no message. Also checked the Security Center again and now it says that there is one or more antivirus software on the computer and it is reporting that at least one is up-to-date. So, it's now going. Thanks.